The 1-pc DoubleSeal screw closure, equipped with an inner and outside sealing lip, provides a superior tight seal for 28mm PET one-way bottles with PCO 1810 neck. The slit tamper evidence band is assuring the integrity of the product and breaks reliable after first opening. The closure is featured with an Advanced Tamper Evidence (ATE) function: the tamper band will break before the integrity of the product is broken.